You're seeing just the function formatted, go back to PassiveSupport.Integer module for more information.
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formatted(integer, opts \\ [])


formatted(integer(), separator: String.t(), spacing: integer()) :: String.t()

Converts an integer to a string, with a separator (default ",") inserted, starting in from the right side of the number, spaced apart by the number of digits specified by spacing (default 3).


iex> formatted(57468291379)
iex> formatted(57468291379, separator: "_")
iex> formatted(57468291379, spacing: 4)